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5 October 2022

⚡️ 111: Improve speed with performance budgets

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Performance Newsletter
[issue 111]()
 
#### Editor’s note
 

Performance budgets are the cornerstone of a successful speed strategy. They bring clear goals for teams and organisations. Budgets make aligning on the same vision and track towards success easier. While not everything can and should be data-driven, it’s challenging to move the speed needle to where we want it to be without clear objectives.

Can you ignore notifications for set budgets? Absolutely. That’s why it’s **vital to decide between aspirational and defensive performance budgets. **If we’re starting on the performance journey and creating budget values for impeccable performance, we might be setting up for a disappointment that creates more friction than wins. Incremental improvement is better than no improvement

 
Karolina
 
 
 
 
#### What’s Performance newsletter?
 

Performance Newsletter is a fortnightly mailing by [Calibre](https://calibreapp.com), featuring web performance tools, talks and resources.

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# Articles  
 
A top-down view of a Formula 1 team changing tires on a F1 car. All of the staff have suits with performance metrics on them, such as TBT, FCP or CLS
 
### [Performance Budgets: the easiest way to a faster site](https://calibreapp.com/blog/performance-budgets)
 
[Karolina Szczur](https://twitter.com/fox)
Improving page speed can be a company-wide goal, but until you set specific targets, it’s not clear what specific metric you want to improve, how you’ll do it, and who’s in charge of getting it there. Learn how to get started with performance budgets!
 
Bar chart showing the potential render-blocking time of top 10 most popular render-blocking third parties. Median render-blocking time of fonts.googleapis.com is 1.085 milliseconds on mobile pages, accounts.google.com is render-blocking for 1,077 milliseconds, adservice.google.com for 1,571, googletagmanager.com for 1,806, ajax.googleapis.com for 1,530, cloudflare.com for 1,300, youtube.com for 1,146, bootstrapcdn.com for 1,241, maps.google.com for 2.095 and jsdelivr.net for 1,370. Desktop and mobile data is similar for all third parties.
 
### [Web Almanac 2022: Third parties](https://almanac.httparchive.org/en/2022/third-parties)
 
[Eugenia Zigisova](https://twitter.com/jevgeniazi)
Half of all site requests are third-party requests. Learn about the massive performance, user experience, security and privacy impact third-party scripts and tools have on the web.
 
 
 
# Tools  
 
Fallback font generator tool showing multiple options to visually align fallback fonts with webfonts
 
### [Fallback Font Generator](https://screenspan.net/fallback)
 
[Brian Louis Ramirez](https://twitter.com/screenspan)
Web fonts are widespread, but optimising them for visual stability and performance isn’t. Use this tool to reduce Cumulative Layout Shift by adjusting web fonts and system fallbacks.
 
 
 
# Courses, Talks & Podcasts  
 
4G median network speed showing a 9.8x difference between bottom range of 18Mb/s and 177Mb/s
 
### [How fast is your website really?](https://slides.com/macklin/how-fast-is-your-website-really/)
 
[Macklin Hartley](https://twitter.com/macklin_hartley)
Can we effectively monitor web performance with current tools? Learn how to track real user data and use continuous monitoring to react to performance regression as they happen.
 
### [Catching up with web performance: Barry Pollard](https://catchingup.dev/podcasts/barry-pollard/)
 
[Tanner Hodges](https://twitter.com/atannerhodges) & [Barry Pollard](https://twitter.com/tunetheweb)
Check Barry Pollard sharing his journey from investment banking to Google, his focus on web performance, and speed evolution from measuring load to the entire page lifecycle.
 
 
# New in Calibre  
 
Calibre's Changelog
### [Calibre’s Changelog](https://calibreapp.com/changelog)
We changed from monthly Release Notes to a Changelog format. Now, you can easily see what’s new in Calibre by categories, such as free tools, open source, or product features (speed budgets or integrations, to name a few).
 
 
Calibre
 
This email is brought to you by the team at [Calibre](https://calibreapp.com). We automate web performance testing, reporting and alerting, so you don’t have to.
 
 

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